Water retaining penetration film produced by milling and its preparation method

Abstract

A rolled water-osmosizing film for accumulating water is made up of the water-leading fibres prepared from natural fibres and hot-fusible powder through pulverizing said water-leading fibres, spreading it and said hot-fusible powder on the bench of a rolling machine layer by layer, baking, hot rolling and cold rolling. Its water-osmosizing speed can be regulated by itself.

Description

technical field [0001] The invention relates to a device for supplying water to plants in the field of forestry and agriculture and a preparation method thereof, in particular to a roll-type water storage permeable membrane and a preparation method thereof. Background technique [0002] With the development of society and the advancement of science and technology, people's ability to conquer and transform nature is gradually improving. In the process of conquering and transforming nature, people have caused great damage to the natural environment. Now people have recognized this serious problem, and afforestation is the best way to control barren mountains and deserts, but how to provide sufficient water for plants in the process of planting trees in these areas has not been well solved for a long time. The problem is that this causes tree planting to be done every year, that is, there is no forest. Also there is above-mentioned problem in agricultural production equally. ...

AI Technical Summary

Problems solved by technology

The average survival rate of tree planting in arid and semi-arid areas in the west is 70%, and in some areas it is only 20% to 30%. In order to improve the survival rate, the method of pumping groundwater is generally used, resulting in lower groundwater levels and further deterioration of ecology

[0003] The current solution to this problem is drip irrigation technology, which originated in Israel. Although it can achieve water-saving irrigation, it has a huge one-time investment and is not suitable for popularization and application in ecological restoration.

Another technology is to put the water storage container directly into the ground, and control the amount of water dripping out of the container to achieve long-term water supply. The disadvantage of this method is that the water supply cannot be adjusted according to the moisture content of the upper soil and the plant species, resulting in a lot of damage. Big waste; and the water storage container must be taken out after use, resulting in a waste of human resources, otherwise it will pollute the environment